F03D1/0675—Rotors characterised by their construction, i.e. structural design details of the blades

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04

F05B—INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY

F05B2240/00—Components

F05B2240/20—Rotors

F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04

F05B—INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY

F05B2260/00—Function

F05B2260/96—Preventing, counteracting or reducing vibration or noise

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE

Abstract

The invention relates to a rotor blade for a wind power installation which has a plurality of segmented elements (16, 18). Said segmented elements are attached to a load transmitting box spar (10) and are separated by elastic joints (28) which enable the segments to move in relation to one another, in order to minimise the tensile stress in the region of the rotor blade in which the segments are located.

Die Verbindung zwischen den Fahnenelementen selbst wird mit einem dauerelastischen Klebstoff hergestellt, der aufgrund seiner Nachgiebigkeit sehr geringe Kräfte in axialer Blattrichtung überträgt, wodurch eine lastabhän gige Deformation des tragenden Holmkastens nahezu lastlos von den Fahnenelementen nachvollzogen werden kann. The connection between the elements themselves flags is manufactured with a permanently elastic adhesive, which transmits because of its resilience very small forces in the axial direction of sheet, whereby a dent lastabhän deformation of the supporting spar box can be almost no-load followed by the flags elements.Die Länge der Fahnenelemente wird dabei so ausgelegt, daß die Verklebung zwischen den Fahnenelementen, der Last des elastischen Klebers angepaßt, diesen nicht überlastet. The length of the vane elements is in this case designed so that the bonding between the flags elements, the load of the elastic adhesive adapted not these overloaded.

Durch diese Ausführung ist die Hinterkante den bisher auftretenden hohen Dehnungsbelastungen entzogen, so daß nunmehr keine Ausbildung gefährlicher Risse mehr zu be fürchten ist. By this design, the rear edge is removed from the previously encountered high strain loads, so that now no training dangerous cracks longer fear to be.Durch die geringen Dehnungen im Bauteil kann zudem bei der Auslegung des Bauteils bereits an Ma terial eingespart werden. Due to the small strains in the component can also be already saved TERIAL to Ma in the design of the component.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus nachfolgender Beschreibung eines bevorzugten Ausfüh rungsbeispiels. Further advantages and features of the invention will become approximately example from the following description of a preferred exporting.Dabei zeigt Here shows

Fig. 1 eine Explosionsdarstellung eines Rotorblattes mit einer Reihe von sieben Nasenelementen, die vor einem durchgehenden Holmkasten an geordnet sind und an die sich in Drehrichtung nachlaufende Fahnenelemente anschließen, die zur hinteren Kante her schmal auslaufen,Fig. 1 is an exploded view of a rotor blade with a series of seven nose elements which are arranged in front of a continuous spar box and which is followed in the rotation direction trailing vane elements that leak to the rear narrow edge forth

Wind generator`s blade for producing electricity, has ribs coupled to mast using sticking lip, and layer coupled to ribs by sticking lip, where sticking lip is constituted of bi-component polyurethane adhesive

Wind generator`s blade for producing electricity, has ribs coupled to mast using sticking lip, and layer coupled to ribs by sticking lip, where sticking lip is constituted of bi-component polyurethane adhesive

Wind-power plant, has blade contact surface of root region of each rotor blade formed opposite to blade axle around blade cone angle, while maintaining inclined position of bolt connection in relation to another blade contact surface